A pressure cooker saves both time and fuel in cooking bec...
A pressure cooker saves both time and fuel in cooking because inside the cooker, the
boiling point of water is raised
pressure is constant
heat is completely trapped
temperature is evenly distributed
volume of steam varies
Correct answer is A
When atmospheric pressure increases, the boiling point becomes higher, and when atmospheric pressure decreases (as it does when elevation increases), the boiling point becomes lower.
If a wire 30 cm long is extended to 30.5 cm by a force of 300 N. find the strain energy of wire...
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Which of the following observations is not an effect of surface tension? ...